Steel Industry
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GASKETS AND SEAL SOLUTIONS Manifattura Guarnizioni COLOMBO & C. spa produces a wide variety of gaskets and sealing systems for machines and industrial plants. Known as “COLOMBO” by industry insiders the company has always been regarded as a highly qualified reference point for technicians, engineers, and skilled maintenance workers. A reliable partner capable of providing customers with a specific and superior know-how for all applications, Colombo is currently one of the major Italian manufacturers of gaskets and sealing systems. Customers who rely on solutions offered by COLOMBO are able...

Steel IndustryPLANTS AND MACHINES Colombo supplies a wide variety of specific seals for iron and steel plants and machines on a worldwide scale. Thanks to the cooperation with the most important steel producing companies, Colombo specializes in the study and design of seals for heavy duty applications: from conveying systems to production plants, from melting machines and rolling mills to extrusion presses. The experience and the know-how related to applications and materials allow to solve the most complex sealing problems faced daily by producers and technicians.

STEEL INDUSTRY Major challenges In the iron and steel industry most applications are considered “heavy-duty”. The main issues faced in this field are: • Extremely high temperatures (even over 1000 °C); • High pressure and high speed applications; • Large diameter housings; • Non-reparable worn housings; • Non-standard groove dimensions; • Eccentric and misaligned rotating movements; • “Fire safe” properties • Contact with very aggressive lubricating greases and oils; • Maintenance operations on old machines without any drawings or housing diagrams; • Lack of technical expertise to solve...

Our wide range of products can meet the requirements of every single department of a steel plant. Colombo can offer the best support, with a technical staff able to analyse and design the most appropriate sealing systems. A comprehensive staff training program and the use of state-of-the-art software, together with the cooperation of university research labs promote professional and personal growth of each individual employee of the company. Modern databases allow to update daily a complex cross-reference system. This helps to decode products manufactured by the most famous brands all over...

• Raw material stock Crushing plants, Hydraulic shears, high capacity cranes, conveyor belts • Production of cast iron and steel ( melting line ) Coke-oven plant, foundries, melting lines, reheating furnaces, fume treatment plants, fume suction and filtering systems • Steel plant ( Casting lines )Converters, ingot casting plants, continuous cast plants, cast conveying systems • Hot and cold rolling mills ( rolling line ) Rolling stands, cylinders, hydraulic caps, intermediate controls • Tube production ( tube extrusion process ) ( welded tube process ) Plants for the production of welded...

F) BRAIDED PACKINGS FOR PUMPS AND VALVES A) SEALS FOR ROTATING MOVEMENTS OIL SEALS / ROTARY SHAFT SEAL A.6 PTFE ROTARY SEALS pag. 12 B) SEALING SYSTEMS FOR HYDRAULIC CYLINDERS C) SPECIAL SEALS FOR FORGING AND EXTRUDING PRESSES C.1 SEALING SYSTEMS FOR HDA CYLINDERS pag. 19 F.6 GLASS AND CERAMIC FIBERS pag. 32 G) SEALS FOR THERMAL INSULATION G.2 INSULATING MILLBOARDS AND PAPER pag. 33 H) SEALS FOR ELECTRIC INSULATION H.1 COMPOSITE MATERIAL RIGID INSULATING BOARDS pag. 34 H.2 THERMOELECTRIC INSULATING MATERIALS pag. 34 D.1 SEAL SOLUTIONS FOR HYDRAULIC CAPSULES pag. 20 D.2 PROTECTION AND...

A) SEALS FOR ROTATING MOVEMENTS - OIL SEALS / ROTARY SHAFT SEAL SEALS FOR ROTATING MOVEMENTS PROFILE TYPE DIM. RANGE [mm] A.1 GTR NBR + fabric FKM + fabric HNBR + fabric VMQ + fabric NBR + fabric FKM + fabric HNBR + fabric VMQ + fabric PTFE ANTI-EXTRUSION RING Nylon ANTI-EXTRUSION RING APPLICATIONS iron and steel plants shipbuilding industry wind power applications paper industry hydropower industry mining industry cement mills SEALS FOR ROTATING MOVEMENTS rotating movements rotating movements rotating movements rotating movements n.a. if split version max 0,5 if endless version rotating...

SEALS FOR ROTATING MOVEMENTS A.3 DIN 3760 PROFILE TYPE DIM. RANGE [mm] MATERIALS P [bar] S [m/s] T [°C] APPLICATIONS \J SEALS FOR ROTATING MOVEMENTS NBR+ steel FKM+ steel HNBR+ steel SIL (VMQ) + steel ACM+ steel EPDM+ steel A.4 FACE SEALS PROFILE TYPE DIM. RANGE [mm] MATERIALS P [bar] S [m/s] T [°C] APPLICATIONS itdf VRM 15x100 transmission systems -30 e 120 (gear boxes) electrical motors machine tools

A) SEALS FOR ROTATING MOVEMENTS - OIL SEALS / ROTARY SHAFT SEAL SEALS FOR ROTATING MOVEMENTS general, prevents, dirt, dust, water from penetrating, it can be used for sealing grease SEALS FOR ROTATING MOVEMENTS :nts^^^^HA.6 PTFE ROTARY SEALS TYPE DIM. RANGE [mm] MATERIALS P [bar] S [m/s] T [°C] APPLICATIONS Oil seal: - PTFE + glass + MOS 2 - PTFE + carbon - PTFE + bronze Oring: NBR FKM u. Virgin PTFE TFM PTFE + carbon Ekonol® Spring: - SS 301 or - Elgiloy® hydraulic cylinders, presses, mobile hydraulics, machine tools

SEALING SYSTEM FOR HYDRAULIC CYLINDERS^^^^^^H Seal ring: PTFE + bronze PTFE + carbon PTFE + graphite PTFE + glass PTFE + glass MOS2 steel mills, injection moulding presses, forging presses, extruding presses, hydraulic cylinders, machine tools, moving machines, valves for hydraulic and pneumatic circuits. IGR/AW Seal ring: PTFE + glass MOS2 PTFE + carbon Energizing ring: hydraulic cylinders for special applications, heavy industry NBR + fabric FKM + fabric HNBR + fabric 15+300 V-rings NBR Sh70 V-rings FKM Sh70 V-rings HNBR Sh70 - Hydraulic cylinders - Injection moulding presses - Forging...

SEALING SYSTEM FOR HYDRAULIC CYLINDERS EGR/B Seal ring: PTFE + bronze PTFE + carbon PTFE + graphite PTFE + glass PTFE + glass MOS2 Oring: NBR sh 70 FKM sh 70 steel mills, injection moulding presses, forging presses, extruding presses, hydraulic cylinders, machine tools, moving machines, valves for hydraulic and pneumatic circuits. Seal ring: PTFE + glass MOS2 PTFE + carbon Energizing ring: NBR sh 80 hydraulic cylinders for special applications, heavy industry NBR + fabric FKM + fabric HNBR + fabric V-rings NBR Sh70 V-rings FKM Sh70 V-rings HNBR Sh70 - Hydraulic cylinders - Injection...